General
-
Target
Client-built.exe
-
Size
3.1MB
-
MD5
b1b23e7564eb88d5e6901c9756463227
-
SHA1
e3bc8a7be02bc91358abe1a1b3351b2c7c0a466c
-
SHA256
984fb190e5d6fbc14972ad1eac799098a0e92fdc9c3caf668fb83a5a2e90f708
-
SHA512
293d73265ad8569d28adcb47e2b5f90b5baa6cde4411825258a5c656abbb7fc831b7b9f753e688511289691137a527590d45204a4e7ecca5595006f920c5f95e
-
SSDEEP
49152:OvFt62XlaSFNWPjljiFa2RoUYIVuz6Bx3GoGdKTHHB72eh2NT:Ov362XlaSFNWPjljiFXRoUYIMzv
Malware Config
Extracted
quasar
1.4.1
Office04
127.0.0.1:4782
ec402812-c0b3-4314-80f7-4ab5e6935689
-
encryption_key
D9C0FD8481035A2F5997C8D6003A1CC132B124F7
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
-
Quasar family
-
Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Client-built.exe
Files
-
Client-built.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ